PHOTOMETRIC STUDY OF THE NEAR CRITICAL CONTACT SYSTEM, GSC 3355 0394

Journal Article · Mon Nov 15 00:00:00 EST 2010 · Astronomical Journal (New York, N.Y. Online)

DOI:https://doi.org/10.1088/0004-6256/140/5/1150· OSTI ID:21443142

Samec, R G; Melton, R A; Figg, E R; Labadorf, C M; Martin, K P; Chamberlain, H A ^[1]; Faulkner, D R ^[2]; Van Hamme, W ^[3]

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1. Astronomy Group, Physics and Engineering Department, Bob Jones University, 1700 Wade Hampton Boulevard, Greenville, SC 29614 (United States)
2. University of South Carolina, Lancaster, 476 Hubbard Dr., Lancaster SC 29720 (United States)
3. Physics Department, Florida International University, 11200 SW 8th Street, Miami, FL 33199 (United States)

GSC 3355 0394 has an EB-type light curve, which is dominated by hot and cool spot activities. It displays night-to-night variations in light-curve shapes. The period study yields six new times of minimum light and the first precision ephemeris, HJD T{sub min}I = 2, 454, 408.9547 {+-} 0.0017 + 0.4621603 {+-} 0.0000008d*E. VR{sub c}I{sub c} standard magnitudes are presented. BVRI Wilson synthetic light-curve solutions are calculated for both a Mode 4 (V1010 Oph-type, semidetached, more massive component filling its Roche lobe) configuration and a Mode 3, contact configuration (fill-out 100% or critical contact). The critical contact is the lowest residual solution. Four major spot regions are needed to model this binary, at least one is evidently a stream spot.

• OSTI ID: 21443142
• Journal Information: Astronomical Journal (New York, N.Y. Online), Vol. 140, Issue 5; Other Information: DOI: 10.1088/0004-6256/140/5/1150; ISSN 1538-3881
• Country of Publication: United States
• Language: English

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